Pink Shares Her Secret for Successful Motherhood

For new mom Pink, balancing a busy career and motherhood is really just a matter of proper timing.

"As long as my boobs are at home at a certain hour, I can do whatever I want," the singer-actress, 32, told PEOPLE at the Hollywood premiere of Happy Feet Two.

Pink, who voices the character of penguin Gloria in the 3D computer-animated film, finds participating in family-oriented movies more meaningful now that she and husband Carey Hart have daughter Willow Sage.